Scientists Turn to 3D Printing to Save Devastated Coral Reefs

Artificial corals could help dying reefs regenerate, but they’re not a replacement

A diver looks at reef of a major bleaching on the coral reefs of the Society Islands on May 9, 2019 in the Polynesian Islands
A diver looks at reef of a major bleaching on the coral reefs of the Society Islands on May 9, 2019 in Moorea, French Polynesia. Photo: Alexis Rosenfeld/Getty Images